Handbooks, manuals, etc 133 Automobiles -- 105 Management 94 Data processing 73 Maintenance and repair 70 Islam 61 Employees -- 55 more ... Islam -- 52 Computer programs 43 Design and construction 43 Business -- 41 Education -- 41 Training of 40 Congresses 39 Electronics 39 Problems, exercises, etc 38 Study and teaching 38 Computer graphics 36 Personnel management 36 English language -- 34 Automatic control 33 Operating systems (Computers) 33 BASIC (Computer program language) 32 Engineering -- 32 Production management 32 Programming 32 Civil service -- 31 Computer networks 29 Microcomputers 29 Electronic data processing 28 less ...